Yesterday new CentOS kernels was released and could be updated with yum update. I did that on 3 systems and none of them worked afterwards. The first system is the machine that runs this blog. It runs Xen kernel with two virtual system.Luckily the webserver and database runs in Dom0. After update the system did […]
If you want to test that your Email system is working as supposed with op5 Monitor or Nagios, i.e. send and recieve emails. I recommend Email Delivery. Features: SMTP TLS SMTP IMAP IMAPS and much more… It simply creates an email and send it through an email system and check that the message is delivered. […]
I do not like spam. This a problem that grows and there are many technologies how to fight it. As I’m the sysadmin of my mailserver it makes it possible to use many approaches. The best way is to find out if it is a spam before it is accepted at the SMTP server. I’m […]
